nRF52840 Core understanding

[vinaysingh]

Hi Nordic Team,

Currently we are exploring nRF52840 DK. 

We have observed BLE Enable SOC usually have two cores, one as an application and one as BLE Soft Device core.

 

But In nRF52840 Datasheet it is nowhere mentioned that nRF52840 has two cores.

Question :-

1.) nRF52840 has two cores or single core ? 

2.) If single core, then how the Soft device binary file is executing and application is executing ?

Thankyou & Regards

Vinay

[Einar Thorsrud]

Hi Vinay,

1.) nRF52840 has two cores or single core ? 

The nRF52840 has a single core. This also applies to all other nRF52 series devices. (The only Bluetooth SoC Nordic provided with dual core is the nRF5340).

2.) If single core, then how the Soft device binary file is executing and application is executing ?

The SoftDevice is a separate binary which communicates with the application using software interrupts. You can read about the details in the SoftDevice Specification, under Application programming interface.

Einar

[vinaysingh]

Hi Einar,

I will explore in Application Programming interface and get back if any queries.

Thankyou & Regards 

Vinay